Why is the order data not sent by email?

Question

WordPress

I display order details via email template

<table class="v1td" style="width: 100%; font-family: Roboto, Arial, sans-serif; margin-bottom: 15px; border: 1px solid #969595; color: #636363" cellspacing="0" cellpadding="6" border="1">
<?php
 $cart_object = WC()->cart;
//    print_r($cart_object);
    $posted = false;
    foreach($cart_object->cart_contents as $key => $value) {
      if(!$posted) {
            $data = $value['data']->get_description();
            $dat = preg_split("(<br>|<br >|</br>|<br/>|\n)", $data);
            foreach($dat as $v) {
                $d = explode(':', $v);
               if(!$d[0] OR !$d[1])
                   continue;
                echo '
                       <tbody>
                       <tr class="v1boost-attribute-option">
                       <td style="font-weight: bold; padding: 8px; width: 300px">
                           '.$d[0].':
                       </td>
                       <td style="padding: 8px" class="v1boost-attribute-value">
                           '.$d[1].'
                        </td>
                        </tr>
                        </tbody>';
            }
            $posted = true;
        }
    }
?>
</table>

I ran into a problem that data comes through manual payment, but not through the payment system. The letter itself is received, the details of the order for which the code above is responsible, they are not displayed

Manual payment

Payment